国产精品成人网站/两攻一受3p双龙h调教/玩弄人妻少妇500系列/人妻换人妻仑乱/国产成人一区二区三区别

不(bu)合格電(dian)線(xian)電(dian)纜的(de)危害(hai)

電線電纜是用于傳輸電力、傳輸信息和實現(xian)電磁能量轉換的一大(da)類電工產品。在抽(chou)查過(guo)程中，發現(xian)了大(da)量的不合格(ge)產品，這些劣質產品給電力系統正常(chang)運行埋下諸多隱患。

1、標(biao)(biao)志不合格(ge)(ge)的(de)(de)電線電纜。標(biao)(biao)志是電線電纜使用識別產品(pin)基(ji)本(ben)信(xin)息的(de)(de)主要途(tu)徑(jing)，根據標(biao)(biao)準規定標(biao)(biao)志的(de)(de)主要內容是：產品(pin)型號、規格(ge)(ge)、標(biao)(biao)準號、廠名、產地等在一定的(de)(de)標(biao)(biao)示間距內，當標(biao)(biao)志不合格(ge)(ge)時，會造成(cheng)施(shi)工人員識別錯誤(wu)，嚴(yan)重(zhong)時會引發電氣事故。

2、結構(gou)尺(chi)寸不合格的電(dian)線電(dian)纜(lan)(lan)(lan)。結構(gou)尺(chi)寸的主要問題是護套厚度(du)，絕緣(yuan)厚度(du)，當電(dian)纜(lan)(lan)(lan)的護套和絕緣(yuan)厚度(du)不達標時(shi)，致(zhi)(zhi)使(shi)電(dian)線電(dian)纜(lan)(lan)(lan)耐(nai)電(dian)氣(qi)強度(du)會嚴(yan)重降低(di)，導(dao)致(zhi)(zhi)電(dian)線電(dian)纜(lan)(lan)(lan)的使(shi)用(yong)壽(shou)命(ming)縮短，嚴(yan)重時(shi)可導(dao)致(zhi)(zhi)電(dian)線電(dian)纜(lan)(lan)(lan)被擊穿(chuan)，絕緣(yuan)（護套）層起(qi)不到正(zheng)常保護作用(yong)，從而發生電(dian)氣(qi)短路和火災等現(xian)象。

3、護套(tao)式絕緣老化(hua)前(qian)的(de)抗張強度(du)、伸長率(lv)合(he)格(ge)的(de)電(dian)(dian)線電(dian)(dian)纜。絕緣護套(tao)老化(hua)前(qian)的(de)抗張強度(du)、伸長率(lv)不合(he)格(ge)直接大大縮短(duan)(duan)電(dian)(dian)線電(dian)(dian)纜的(de)工(gong)作用壽(shou)命，而且在(zai)施工(gong)或(huo)在(zai)長時間通電(dian)(dian)且溫度(du)較高的(de)環境(jing)中，極(ji)易出現絕緣體斷裂(lie)，致(zhi)使帶電(dian)(dian)導體裸露，發生(sheng)能(neng)觸電(dian)(dian)式短(duan)(duan)路危險(xian)。其(qi)不合(he)格(ge)的(de)主要(yao)原因是(shi)使用了再生(sheng)料生(sheng)產(chan)，以降低(di)產(chan)品成(cheng)本，二(er)是(shi)不具(ju)備生(sheng)產(chan)資格(ge)小(xiao)型企業。

4、導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)(zu)不合格的(de)(de)電(dian)(dian)(dian)線(xian)(xian)。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)(zu)主(zhu)要(yao)是考(kao)核電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)材(cai)(cai)料以及截(jie)面是否符合的(de)(de)重要(yao)指(zhi)標(biao)(biao)。當導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)(zu)超標(biao)(biao)時(shi)，就(jiu)增大了電(dian)(dian)(dian)流在線(xian)(xian)路上(shang)通過(guo)(guo)時(shi)的(de)(de)損耗，加劇(ju)了電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)發(fa)熱。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)(zu)不合格的(de)(de)原因，主(zhu)要(yao)進企業為(wei)了降低(di)成(cheng)本，將占原材(cai)(cai)料成(cheng)本80%的(de)(de)銅材(cai)(cai)縮水，要(yao)么降低(di)導(dao)體(ti)(ti)的(de)(de)截(jie)面積，要(yao)么使(shi)用含雜(za)質過(guo)(guo)高的(de)(de)再生銅，這樣致使(shi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)(zu)嚴(yan)重超標(biao)(biao)，在使(shi)用過(guo)(guo)程中除易引發(fa)火(huo)災，還會加速包覆在電(dian)(dian)(dian)線(xian)(xian)外的(de)(de)絕緣層的(de)(de)老化(hua)。

在購買電(dian)線電(dian)纜的(de)過程中(zhong)，消費者(zhe)應注意以下幾(ji)個事(shi)

第一、要觀(guan)察電(dian)線的(de)外觀(guan)。合格產(chan)品(pin)的(de)絕緣（護套）層柔(rou)軟(ruan)、有(you)韌(ren)性和伸縮性、表(biao)面層緊密、光(guang)滑、無粗糙(cao)感。如果(guo)包(bao)裹(guo)電(dian)線的(de)塑(su)料很容易被(bei)剝(bo)去，則存在(zai)塑(su)料強(qiang)度不夠的(de)問題。

第二、要看電(dian)線的(de)截面。合(he)格產(chan)品的(de)銅芯或鋁(lv)芯表(biao)面應該具有金屬光澤，表(biao)面發黑的(de)銅或表(biao)面發白(bai)的(de)鋁(lv)說明已被氧化。

第三(san)、在購買電(dian)線時應(ying)注(zhu)意(yi)查看質(zhi)量合格證書(shu)。如(ru)果(guo)電(dian)線的質(zhi)量合格，那(nei)么(me)其電(dian)線質(zhi)量應(ying)該也(ye)受過檢驗，不會有太大的問題。

沈(shen)(shen)陽凱(kai)鵬(peng)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制(zhi)造有限公(gong)司(si)(si)隸屬凱(kai)鵬(peng)集團(tuan)下(xia)屬子(zi)公(gong)司(si)(si)，專(zhuan)門從事電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研發(fa)、生(sheng)產制(zhi)造，是(shi)全國頗(po)具實力的沈(shen)(shen)陽電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)家，主(zhu)營產品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝備(bei)用電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)子(zi)計算(suan)機電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)等，以(yi)及(ji)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代(dai)加工。小(xiao)編(bian)每天(tian)會在公(gong)司(si)(si)官(guan)網發(fa)布電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價(jia)格表，及(ji)時更新銅價(jia)以(yi)及(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)報價(jia)信息(xi)。更多(duo)有關電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)信息(xi)可點擊(ji)公(gong)司(si)(si)官(guan)網szbowen.cn